Google index dropped..

Wow....my site was index about 62,000+ pages in google search, but now only 38,400 pages. I still can see the number dropping on the way. I just have vBSEO 3.2.0last week.

What am I going to do to make it up again?

How is your actual traffic talaconheo?

Here's my graph from google analytics

Something definitely impacted you there. It seems like you are on a return trend right now.

The drop in google index might be due to various factors. The site might have been penalised by google.
1. Make sure that your website is not linked to any spam websites, gambling & adult websites, banned websites and unrelated websites.
2. You check your server IP whether it has been blacklisted or not. If it is and cannot remove, change your server.
3. Don’t over stuff your keywords in content and Meta tags. Use only wherever it needs.
4. Don’t give excessive interlinks to the pages present in the same website. Extensive interlinking of all your websites, particularly if they are on the same C Class IP address will affect all your websites.
5. Avoid hidden text or links
6. You should not participate in any link farm. If you are interested in generating revenue through advertisement just go ahead by implementing no follow attribute for that link.
7. Excessive reciprocal link exchange will put you in trouble. It should be done only if they are relevant and useful.
8. Get one way links for your website slowly. Use different keywords for anchor text, don’t use the same for all back links
If you are sure that you haven’t done any violation of Google guidelines, request Google for reconsideration of your site.

Thank you Delhi